Malicious PDF — malware analysis report

Static analysis result for SHA-256 60645172595c388c…

MALICIOUS

PDF

73.6 KB Created: 2021-02-24 19:08:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: a8d7c1179d118e5c00c16e44c1680ba0 SHA-1: 9ad564b97565fefb5b6ceea8bf7646f95a0d08a6 SHA-256: 60645172595c388c8ad38907a6a2f000b5805d166606192b6473b4613f5d3a48
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://leonvi.ru/aws?utm_term=d%2526d+5e+character+sheet+pdf+editable PDF link annotation
    • http://antonioit.space/collar_x_malice_platinum_guidehav9z.pdfIn PDF document text
    • https://cdn.sqhk.co/rilixuzewiv/KmS8gjO/38214282512.pdfIn PDF document text
    • https://niwurepezexeted.weebly.com/uploads/1/3/5/3/135312419/rokugisiza_lufitaw.pdfIn PDF document text
    • https://dupemokuko.weebly.com/uploads/1/3/4/7/134759865/xupozuzop.pdfIn PDF document text
    • http://faceskinagainbeauty.xyz/59370605281jp2l6.pdfIn PDF document text
    • https://cdn.sqhk.co/jelasusoved/h8GShvz/jomopekedegole.pdfIn PDF document text
    • https://cdn.sqhk.co/xolovagi/hnidghd/sprinkle_island_pro_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/kapimetavis/jjdFgjC/ice_cream_cone_costume_toddler.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445114/normal_602af5854ee93.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477620/normal_5fd64845db9e0.pdfIn PDF document text
    • https://lazumuron.weebly.com/uploads/1/3/4/8/134863931/sovidesinezudivo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469852/normal_5fe724ac33af0.pdfIn PDF document text
    • https://xofiguguja.weebly.com/uploads/1/3/2/7/132710561/ba34c5b.pdfIn PDF document text
    • http://virona.org/rorajesudinenekupafifviug.pdfIn PDF document text
    • https://xozavefo.weebly.com/uploads/1/3/4/0/134018900/fa3625b7b961.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A8 4156 bytes
SHA-256: 9253c4ec90eb8b217ae91b3aef6412788d3d1419415539c5cfb70110cf842fd1
font_01_sfnt_off0000f4d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4D6 10968 bytes
SHA-256: b0ede41cd479a6ed3d3b3f2d86f5fa516b53ce7bf78824e7cc8066f27c136432